Float-valve.



J. RUTHCHILD & H. S. GONOVER.

FLOAT VALVE.

AP1 L1GYATI0N FILED Amma. 1910.

1,007,009, y Patented 0111.211911.

/S V 4y- Zz s' 20 S M cnLuMmA PLANOURAPH :c3-.WASHINGTON D. C.

*UNITED STATES PATENT OFFICE.

JOSEPH ROTHCHILD, OF NEW YORK, AND HENRY S. CONOVER, OF BROOKLYN, NEW

lYORK, ASSIG-NORS TO THE ROTI-ICHILD PRESSURE SPECIALTIES COMPANY, OECAN- r,

TON, NEW YORK, A CORPORATION OF NEW YORK.

FLOAT-VALVE.

specification of Letters Patent.

Application filed April 16, 1910. Serial No. 555,786.

To all whom it may concern:

Be it known that we, Josnrrr ROTHCHILD,l

a citizen of the United States, residing at New York, in the county andState of New York` and HENRY S. ConovnR, a citizen of the United State,residing at Brooklyn, in the count-y of Kings, in the State of New York,have invented certain new and useful Improvements in Float-Valves, ofwhich the following is a specification.

This invention relates to iioat valves and is in the nature of animprovement on the construction described and claimed in U. S. Patent toJoseph Rothchild, one of the joint inventors of the present invention,granted February 15, 1910, and numbered 949,635. In that patent thecasing does not iit snugly around the plug but has a space between aninterior diaphragm and the discharge pipe to the tank. The float is notattached to the discharge pipe but a separate rod or pipe leads from thecasing, without communication with the interio-r thereof, to the outerend of which rod or pipe the float is attached.

The object of the present invention is to simplify and economize theconstruction by dispensing with the diaphragm in the casing and theextra rod or pipe to connect with the float and to provide in simpleeconomical form a valve having a xed plug adapted to be connected to asuitable source of water supply, and a rotatable casing mounted on theplug and provided with a lateral discharge pipe, the whole mounted in atank or reservoir and the discharge pipe being provided with anactuating gravity float whereby the tank is automatically filled to apredetermined point whenever -it is emptied.

In the drawings Figure 1 represents a tank or reservoir in verticalsection With a valve embodying the invention in side elevation1 the tankbeing empty and the water beginning to enter the same; Fig. 2 is asimilar view of the same parts showing the reservoir partly filled andthe float elevated; Fig. 3 is an enlarged longitudinal section throughthe casing and plug, and Fig. 4 is a transverse section of the partsshown in Fig. 3 and on the same scale.

In the drawings represents a tank or reservoir open at the top andprovided at the bottom with a discharge orice ll which may be governedby a valve (not shown) in the usual manner, it being understood thatwhen the orice is open, the water, or other contents of the reservoir,will be discharged through it; and when it is closed, the water will beretained in the tank.

Secured at any convenient place near the top of the tank by a strapindicated at and held in place by one or more screws 16 is a supply pipe17 connected by a coupling 1S to another supply pipe 19. Thisarrangement is a convenient one for the construction shown, but it willbe understood that any form of supply which may be expedient for thesituation in which it is to be used will suic1 the purpose of theinvention equally we Fixed to the inner end of the supply pipe 17 in anyapproved manner for instance by a threaded connection, is a hollow plug20 turned at 21 and having a tapering body 22 in the general form of thefrustum of a hollow cone and which body terminates in an end wall 23impervious to the fluids entering the plug, and which end wall isreduced to a threaded projection 24. A pair of longitudinal openings 25and 26 are provided in the tapering body 22 and form ports for thepassage of the fluids. The part of the plug 2O where it is fixed to thesupply pipe is preferably made with external angular faces as at 220 inorder that it may readily be turned by a wrench.

Surrounding the plug 2O is a casing 30 hollowed out to fit accuratelyover the body 22 and provided with an annular projecting flange 31having external angular faces and internally threaded to receive andengage the externally threaded end 41 of a pipe 40 depending therefrom.A collar 33 ts over the projection 24 and a nut 34 is secured to thethreaded end of that projection. This arrangement is such that while theplug is fixed the casing rotates on it smoothly as on a bearing all ofthe contacting parts having a tight fit. The casing is provided with aninwardly projecting web or diaphragm 35 provided with a passage way 36which registers with either the port 26 or the port 25 of the plugdepending on the positions of the other parts. The pipe reaches downtoward the bottom of the tank and at any convenient point along itslength is pro- Patented Oct. 24, 1911. C;

vided with a float 42 secured by a collar 43 and set screw 44 or in anyother usual manner.

In using the device, when 'the water is let` out of the tank l0 throughthe aperture 11, the float 42 falls by gravity and carries with it thepipe Ll0 to which it is secured. This movement rotates the movablecasing 30 on the body 22 of the fixed plug 20 and brings the left edgeof the opening 36 past the right edge of the port 26 of the plug. Themoment this occurs water begins to flow from the pipes 19 and 17 and theinterior of the plug 2O through these passages 26 and 36 and down theinterior of the pipe 4:0 and so out into the bottom of the tank l0. Itis obvious that the ports 26 and 36 may be set at any desired relativepositions, so that a full opening of the water passage may be securedwhen the pipe 40 is at any desired angle. As the water pours through thepipe 4:0 and gradually fills the reservoir l0, the float rises, and inrising lifts up the pipe 41:0 and so rotates the casing 30 on the plug2O and gradually causes the left edge of the port 36 to approach theright edge of the port 26 at which point the water is cut off and thevalve is closed. Obviously by vary- .ing the relative positions of theedges of the ports, the valve can be adjusted to shut off the water atany required level. As the lower or discharge end of the pipe 40 isalways below the water level on account of its connection with the floatthere is no splashing of the water and the operation of the device ispractically noiseless. If the casing 30 were rotated so as to bring theports 36 and 25 in registry, the valve could be used equally well butwould have to be located at the bottom of the tank. It is obvious thatthe ports in either the casing or plug can readily be arranged toaccommodate any desired position of the valve or the supply pipe. Thefloat l2 may, by means of collar 43 and set screw 44E, be adjusted atany point along the pipe 40 so that the lowermost point to which thefloat l2 will descend can readily be predetermined. It will beunderstood of course that the aperture l1 is controlled by any usualform of valve adapted to be operated from outside of the tank. This isnot shown because any workman skilled in the art can readily supply one.

What we claim as new is l. A valve comprising a means of water supply, adischarge pipe serving as a valve operating lever, a sleeve rotatablyand slidably mounted on the discharge pipe adjacent its free end, and afloat ball attached on the periphery of the sleeve.

2. A float valve comprising a casing and a hollow plug therein, thecasing and plug being provided with coacting ports, a pipe through whichthe liquid passing through the valve is discharged, and which serves asa valve operating lever, a sleeve rotatably and slidably mounted on thedischarge pipe adjacent its free end, and a float ball attached on theperiphery of the sleeve.

3. A float valve comprising a casing and a hollow plug therein, thecasing and plug having coacting ports, a pipe attached to the casing infree communication with the port thereof and serving as a discharge pipeand a lever to rotate the casing on the plug, a sleeve rotatably andslidably mounted on the pipe adjacent its free end, and a float ballattached on the periphery of the sleeve.

In testimony whereof we aiiix our signatures in presence of twowitnesses.

JOSEPH ROTHCHILD. HENRY S. CONOVER.

Witnesses:

E. lV. SGHERR, J r., ALAN C. MCDONNELL.

Copies of this patent may be obtained for five cents each, byaddressing' the Commissioner of Patents, Washington, D. C.

